[R] CART analysis

Weiwei Shi helprhelp at gmail.com
Wed Jul 27 16:43:30 CEST 2005

Most of time, I prefer to use randomForest of R though it really
depends on your problem. And don't forget Leo's Random Forest if you
don't use it for commercial purpose.


On 7/26/05, Marc R. Feldesman <feldesmanm at pdx.edu> wrote:
> --- Adaikalavan Ramasamy <ramasamy at cancer.org.uk> wrote:
> > RSiteSearch("CART") should bring up a few hits including
> >
> >   http://finzi.psych.upenn.edu/R/Rhelp02a/archive/25850.html
> >
> "CART" is a trademarked statistical procedure owned by Salford Systems
> of San Diego, CA.  If you're looking for an R-package that implements
> the procedures described in the Breiman, Friedman, Olshen, and Stone
> book entitled "Classification and Regression Trees", the closest you
> can come to the original algorithm is the R-package called "rpart", by
> Therneau and Atkinson.  If you combine that with Andy Liaw's
> "randomForest", you have a pretty potent set of tools.  If you really
> want "CART", you need to contact Salford Systems for their
> implementation and pay their very expensive licensing fees.
> Dr. Marc R Feldesman
> Professor & Chair Emeritus
> Department of Anthropology
> Portland State University
> Portland, OR 97207
> Please respond to all emails at:  feldesmanm at pdx.edu
> "Some people live and die by actuarial tables"  Groundhog Day
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Weiwei Shi, Ph.D

"Did you always know?"
"No, I did not. But I believed..."
---Matrix III

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